Improvement in drive-chains



Patented Sept. 1,1874.

Wiki/'few UNITED STATES-PATENT l.OrFIoE..

Wnj'LiAM D. EWAnntiBELLn PLAiNEIowA.

iMP'Rovi-:MENT INDmyE-ci-lmis.

Specilication forming pal-t of Letters Patent No. 154,594, dated September' 1, 1874 application filed January 3l, 1674.

clear, and exact description of the construc-` tion and operation of y the same, reference be-V inghad to the annexedg drawings, making a part of this specification, and to the -4 letters and figures of referencernarked thereon,

Figure-I of' the drawing is a representation of a side view of my drive-chain.- Fig. 2 isa sectional view of the same. Fig. 3 is a plan, `and Fig. 4 a detail, view of the same.

` This invention has relation to what are dernominated rag-chains, which are usedv in combination `with sprocket-wheels on harvest- 'ing and'other machinery. It consists' "in a rag-chain which is made up of detachable links, for the purpose of readilysubstituting -anew link for one'which is broken; at the same time thelinksare' not liable to casual detachment, as will be hereinafter explained.

The following is a description of my inven- SOI:` i

The links A are preferably of a rectangular form, longer than they are broad, their side bars a a being round, or nearly so, and their A.end bars'b b being constructed as shown in the annexed drawings. The end bar b has constructed onit abroad hook, c, which is about i three-quarters ofacircle, andwhich is adapted for receiving in it thevendbar b.

For the purpose of connecting the links and disconnecting them readily, the side bar a' of ea'ch link is notched at e e, which' reduces the ,Among many advantages attending my inventiomdwillmention the following: They never n eed to be bent, riveted. or altered after thev arel made. and for Vdrive-chains they alIoWtue fastening ofsquare or open links, so. that tbesprockets on the driving-pulleys can be arranged' close together, thereby dividing the application of power and diminishing .the strain. They allow chains to be readily shortened, or lengthened, or repaired, and they make the broadest possible bearings-on each other, thereby preventing lateral A'motion of the chain when run slack, and increasing strenigtl1.

Iflthe'links. are' made ofinalleable metal; the endsot their hooks will be properly bent..

after casting the links,

'What I claim as new, and desire to secure by Letters Patent, is

Driving-chain links notchedor reducedat'c, and constructed with coupling-hooks e, substantially as described. j

.In testimony that I claim the above 'I have hereunto subscribed my name in the 'presence of 'two witnesses. 4 I

' WILLIAM nana" nwnnr.

Witnessesrv I). E. HALLETT, FRANKBENEsoH. 

